EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
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Textbook Question
Chapter 4.2, Problem 1CC
DRAW IT Ø (a) Draw a structural formula for C2H4.
(b) Draw the trans isomer of C2H2CI2.
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Students have asked these similar questions
Apamine is a small protein toxin present in the venom of the honey-
bee. It has the sequence
CNCKAPETALCARRCQQH
(a) It is known that apamine does not react with iodoacetate (see
page 169). How many disulfide bonds are present?
(b) Suppose trypsin cleavage gave two peptides. Where is(are) the
S-S bond(s)?
Apamine is a small protein toxin present in the venom of the honeybee. Ithas the sequenceCNCKAPETALCARRCQQH(a) If apamine does not react with iodoacetate (see Tools of Biochemistry5B), then how many disulfide bonds are present?(b) If trypsin cleavage gave two peptides, then where is(are) the S¬Sbond(s)?
If an oligosaccharide is attached to a protein via an O-glycosidic linkage which amino acid residue(s) are likely to be involved?
O Glutamine
O Serine
O Histidine
O Threonine
O Both (b) and (d)
Chapter 4 Solutions
EBK CAMPBELL BIOLOGY
Ch. 4.1 - Why was Whler astonished to find he had made urea?Ch. 4.1 - VISUAL SKILLS See Figure 4.2. Miller carried out...Ch. 4.2 - DRAW IT (a) Draw a structural formula for C2H4....Ch. 4.2 - Prob. 2CCCh. 4.2 - How are gasoline and fat chemically similar?Ch. 4.2 - VISUAL SKILLS See Figures 4.5a and 4.7. Can...Ch. 4.3 - VISUAL SKILLS What does the term amino acid...Ch. 4.3 - What chemical change occurs to ATP when it reacts...Ch. 4.3 - DRAW IT Suggose you had an organic molecule such...Ch. 4 - How did Stanley Miller's experiments support the...
Ch. 4 - Prob. 4.2CRCh. 4 - In what ways does a methyl group differ chemically...Ch. 4 - Organic chemistry is currently defined as (A) the...Ch. 4 - Prob. 2TYUCh. 4 - MAKE CONNECTIONS Which chemical group is most...Ch. 4 - VISUAL SKILLS Visualize the structural formula of...Ch. 4 - visual skills Choose the term that correctly...Ch. 4 - VISUAL SKILLS Identify the asymmetric carbon in...Ch. 4 - Which action could produce a carbonyl group? (A)...Ch. 4 - Prob. 8TYUCh. 4 - Prob. 9TYUCh. 4 - SCIENTIFIC INQUIRY 50 years ago, pregnant women...Ch. 4 - WRITE ABOUT A THEME: ORGANIZATION In 1918, an...Ch. 4 - SYNTHESIZE YOUR KNOWLEDGE Explain how the chemical...
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- The melanocyte-stimulating peptide hormone a-melanotropin has the following sequence:Ser–Tyr–Ser–Met–Glu–His–Phe–Arg–Trp–Gly–Lys–Pro–Val(a) Write the sequence using the one-letter abbreviations.(b) Calculate the molecular weight of a-melanotropin, using data inTablearrow_forwardAn oligopeptide has the following amino acid sequence: NH2-Ala-Glu–Leu–Trp–Tyr-Ser–Gly–Lys–Leu-Ala–Arg-Ala-Phe-Ile-Pro–Gly-COOH a) Estimate the net electric charge of the molecule at pH 8.0 and pH 11.0. b) If the above peptide is passed through a cation exchange chromatographic column (that is, the matrix of the column has negative charges) stabilized at pH 8.0, would you expect it to be retained on the column? c) Indicates the number of fragments, and the sequence of each of them, that would be obtained when treating the peptide in question with: i) trypsin, ii) chymotrypsin.arrow_forward(a) Draw an example of a triglyceride molecule and name the functional group that links the glycerol backbone to the side-chains derived from fatty acids. (b) The structure of a neuraminidase inhibitor is shown in Figure Q6b. This compound renders the influenza virus unable to escape its host cell and so controls further infection. Using your knowledge of amino acids, draw possible binding interactions that all functional groups in the inhibitor (except C7-OH) could make with the neuraminidase enzyme. + H HN. H + Arg152 NH, HN 12 Arg156 OH NHCCH, Glu119 OH -0 но ÓH H+ N. HN HN Arg118 HN' 2 + HN Glu276 + H Arg292 NH, HN NH2 Arg371 Neuraminidase Inhibitor (Figure Q6b)arrow_forward
- . Apamine is a small protein toxin present in the venom of the honeybee. It has the sequence CNCKAPETALCARRCQQH (a) If apamine does not react with iodoacetate (see Tools of Biochemistry 5B), then how many disulfide bonds are present? (b) If trypsin cleavage gave two peptides, then where is(are) the S-S bond(s)?arrow_forwardThe melanocyte-stimulating peptide hormone a-melanotropin has the following sequence: Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val (a) Write the sequence using the one-letter abbreviations. (b) Calculate the molecular weight of a-melanotropin, a da'arrow_forwardWith the aid of a simple generic diagram: i) IDENTIFY and EXPLAIN how the type(s) of chemical bonding stabilizes a SECONDARY structure that is present in 3GRS(Glutathione Reductase)??? https://www.rcsb.org/ ii) Describe why position 58 (Cysteine ) in 3GRS is important ??? and outline the Effects of the mutation from Cysteine 58 (Cys) to Glycine(GLY) will have on the 3D structure?? Effect of the mutation from Cysteine 58 (Cys) to Glycine (Gly )will have on the function of 3GRS?? I am stuck! please help only correct answers pls!arrow_forward
- Acetone, CH3–(C=0) –CH3, and urea, NH2–(C=0)–NH2, have similar chemical structures. (a) Compare the possible intermolecular forces for acetone with those for urea. (b) Compare the intermolecular forces between phycocyanin and acetone with those between phycocyanin and water. Briefly explain how acetone disrupts the folding in phycocyanin. (c) Compare the intermolecular forces between phycocyanin and urea with those between phycocyanin and water. Briefly explain how urea disrupts the folding in phycocyanin. (d) Compare your experimental observation on the disruption of phycocyanin folding in the presence of acetone with that in the presence of urea. Briefly explain whether your comparison is consistent with the properties of acetone and urea.arrow_forwardThe melanocyte-stimulating peptide hormone α-melanotropin has the following sequence: Ser–Tyr–Ser–Met–Glu–His–Phe–Arg–Trp–Gly–Lys–Pro–Val(a) Write the sequence using the one-letter abbreviations.(b) Calculate the molecular weight of α-melanotropin, using data in as shown.arrow_forward(a) Draw the structure of the high-energy nucleoside triphosphate GTP. (b) Draw the structure of the hydrolysis product formed when one phosphate is removed.arrow_forward
- What peptides are expected to be produced when α-melanotropin is cleaved by (a) trypsin, (b) cyanogen bromide, or (c) thermolysin? (as shown)arrow_forwardIdentify and encircle the peptide bonds in this polypeptide (Leu-Pyr-Sec-Ile-Ser-Glu)?arrow_forward(i) Identify the type of sphingolipids A and B in Figure 2. CHS A CH3 в Figure 2 (ii) What structural similarities are shared by sphingolipids and proteins? (iii) Why are sphingolipids abundant in cell membrane?arrow_forward
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